Regeneron Pharmaceuticals, Inc.
REGN- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000872589
In the last 90 days, Regeneron Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 1,342 institutions reported holding it in 13F filings for Q2 2026, worth $57.1B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Regeneron Pharmaceuticals, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,401
- +38 vs. Q4 2025
- Shares held
- 90.5M
- +9.56M (+11.8%) vs. Q4 2025
- Total value
- $69.8B
- +$7.27B (+11.6%) vs. Q4 2025
- New holders
- 138
- 578 more added
- Sold out
- 100
- 461 more reduced
24 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting REGN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,342 | $57.1B |
| Q1 2026 | 1,401 | $69.8B |
| Q4 2025 | 1,387 | $70.7B |
| Q3 2025 | 1,243 | $49.0B |
| Q2 2025 | 1,201 | $46.9B |
| Q1 2025 | 1,290 | $59.0B |
| Q4 2024 | 1,320 | $66.6B |
| Q3 2024 | 1,393 | $97.5B |
| Q2 2024 | 1,335 | $98.9B |
| Q1 2024 | 1,313 | $89.3B |
| Q4 2023 | 1,274 | $80.3B |
| Q3 2023 | 1,180 | $75.1B |
| Q2 2023 | 1,168 | $66.2B |
| Q1 2023 | 1,196 | $76.1B |
| Q4 2022 | 1,161 | $66.9B |
| Q3 2022 | 1,081 | $64.0B |
| Q2 2022 | 1,066 | $55.0B |
| Q1 2022 | 1,097 | $64.5B |
| Q4 2021 | 1,081 | $56.9B |
| Q3 2021 | 1,022 | $54.5B |
| Q2 2021 | 975 | $49.6B |
| Q1 2021 | 926 | $42.3B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Generali Asset Management SPA SGR | 7,504 | $5.80M | 0.12% | −162−2.1% | Reduced |
| Sicart Associates LLC | 6,961 | $5.38M | 1.38% | 00.0% | Unchanged |
| Bedell Frazier Investment Counseling, LLC | 6,900 | $5.33M | 1.08% | +28+0.4% | Added |
| Insight Wealth Strategies, LLC | 6,884 | $5.32M | 0.59% | −612−8.2% | Reduced |
| Baader Bank INC | 6,811 | $5.26M | 0.52% | +3,958+138.7% | Added |
| Modera Wealth Management, LLC | 6,751 | $5.22M | 0.06% | −8−0.1% | Reduced |
| M&T Bank Corp | 6,750 | $5.22M | 0.02% | +315+4.9% | Added |
| AE Wealth Management LLC | 6,681 | $5.16M | 0.03% | +1,207+22.0% | Added |
| JB Capital LLC | 6,651 | $5.14M | 0.21% | +62+0.9% | Added |
| Commerce Bank | 6,448 | $4.98M | 0.02% | +178+2.8% | Added |
| MAI Capital Management | 6,357 | $4.91M | 0.03% | +874+15.9% | Added |
| Arnhold LLC | 6,228 | $4.81M | 0.35% | 00.0% | Unchanged |
| Ledyard National Bank | 6,226 | $4.81M | 0.42% | +93+1.5% | Added |
| Gilman Hill Asset Management, LLC | 6,200 | $4.79M | 0.72% | +229+3.8% | Added |
| RSM US Wealth Management LLC | 6,175 | $4.77M | 0.06% | +743+13.7% | Added |
| Brighton Jones LLC | 6,131 | $4.74M | 0.10% | +6,131 | New |
| Meeder Asset Management Inc | 6,094 | $4.71M | 0.27% | +671+12.4% | Added |
| Mizuho Securities USA LLC | 6,094 | $4.71M | 0.11% | −1,244−17.0% | Reduced |
| Citizens Business Bank | 6,090 | $4.71M | 0.77% | −92−1.5% | Reduced |
| Unison Advisors LLC | 6,029 | $4.66M | 0.35% | +6+0.1% | Added |
| Legato Capital Management LLC | 6,004 | $4.64M | 0.42% | −2,799−31.8% | Reduced |
| Osmosis Investment Management UK Ltd | 5,919 | $4.57M | 0.12% | −113−1.9% | Reduced |
| Warren Averett Asset Management, LLC | 5,895 | $4.56M | 0.03% | +3,250+122.9% | Added |
| Exchange Traded Concepts, LLC | 5,806 | $4.49M | 0.03% | +943+19.4% | Added |
| Madison Asset Management, LLC | 5,784 | $4.47M | 0.06% | −185−3.1% | Reduced |
| Hartford Investment Management Co | 5,752 | $4.44M | 0.14% | −69−1.2% | Reduced |
| PKO Investment Management Joint-Stock Co | 5,750 | $4.44M | 0.37% | +900+18.6% | Added |
| US Bancorp | 5,628 | $4.35M | 0.01% | +81+1.5% | Added |
| Merit Financial Group, LLC | 5,585 | $4.31M | 0.03% | +1,572+39.2% | Added |
| Veracity Capital LLC | 5,553 | $4.29M | 1.53% | −73−1.3% | Reduced |
| Game Creek Capital, LP | 5,525 | $4.27M | 1.64% | −2,910−34.5% | Reduced |
| Sovran Advisors, LLC | 6,019 | $4.26M | 0.33% | −2,600−30.2% | Reduced |
| Motley Fool Wealth Management, LLC | 5,485 | $4.24M | 0.48% | −2,307−29.6% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 5,404 | $4.18M | 0.02% | +551+11.4% | Added |
| Group One Trading, L.P. | 5,399 | $4.17M | 0.14% | +2,207+69.1% | Added |
| Emerald Investment Advisers, LLC | 5,388 | $4.16M | 0.37% | +5,388 | New |
| AMG National Trust Bank | 5,378 | $4.16M | 0.09% | −161−2.9% | Reduced |
| Jane Street Group, LLC | 5,374 | $4.15M | 0.00% | −7,247−57.4% | Reduced |
| Tema ETFs LLC | 5,360 | $4.14M | 0.28% | +498+10.2% | Added |
| Oxbow Advisors, LLC | 5,334 | $4.12M | 0.35% | +7+0.1% | Added |
| Buckingham Strategic Partners | 5,290 | $4.09M | 0.04% | +887+20.1% | Added |
| Peak Wealth Management LLC | 5,211 | $4.03M | 3.30% | +7+0.1% | Added |
| Linden Thomas Advisory Services, LLC | 5,122 | $3.96M | 0.38% | +662+14.8% | Added |
| Maryland State Retirement & Pension System | 5,090 | $3.93M | 0.08% | +61+1.2% | Added |
| CenterBook Partners LP | 5,060 | $3.91M | 0.21% | −25,186−83.3% | Reduced |
| Fisher Asset Management, LLC | 5,059 | $3.91M | 0.00% | +69+1.4% | Added |
| Siemens Fonds Invest GmbH | 5,017 | $3.88M | 0.22% | −373−6.9% | Reduced |
| Nearwater Capital Markets, Ltd | 5,000 | $3.86M | 0.09% | −25,000−83.3% | Reduced |
| JBF Capital, Inc. | 5,000 | $3.86M | 0.57% | 00.0% | Unchanged |
| Pine Valley Investments Ltd Liability Co | 4,942 | $3.82M | 0.19% | −970−16.4% | Reduced |
| Generate Investment Management Ltd | 4,908 | $3.79M | 0.19% | +4,908 | New |
| Miracle Mile Advisors, LLC | 4,897 | $3.78M | 0.05% | +1,155+30.9% | Added |
| Abn Amro Investment Solutions | 4,860 | $3.76M | 0.05% | +503+11.5% | Added |
| Cambridge Investment Research Advisors, Inc. | 4,832 | $3.73M | 0.01% | −58−1.2% | Reduced |
| B & T Capital Management DBA Alpha Capital Management | 4,828 | $3.73M | 0.54% | −565−10.5% | Reduced |
| E Fund Management Co., Ltd. | 4,825 | $3.73M | 0.11% | +4,825 | New |
| Sanibel Captiva Trust Company, Inc. | 4,812 | $3.72M | 0.10% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 4,800 | $3.71M | 0.11% | 00.0% | Unchanged |
| Asio Capital, LLC | 4,791 | $3.70M | 0.52% | +357+8.1% | Added |
| Citizens Financial Group Inc | 4,775 | $3.69M | 0.05% | +916+23.7% | Added |
| Victrix Investment Advisors | 4,766 | $3.68M | 1.34% | −134−2.7% | Reduced |
| Prospera Financial Services Inc | 4,667 | $3.61M | 0.06% | +115+2.5% | Added |
| Ameritas Investment Partners, Inc. | 4,656 | $3.60M | 0.11% | +20+0.4% | Added |
| Oliver Luxxe Assets LLC | 4,641 | $3.59M | 0.54% | +4,641 | New |
| Atlantic Union Bankshares Corp | 4,634 | $3.58M | 0.07% | −2,232−32.5% | Reduced |
| Steward Partners Investment Advisory, LLC | 4,620 | $3.57M | 0.02% | −63−1.3% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 4,579 | $3.54M | 0.10% | −52−1.1% | Reduced |
| Augustine Asset Management Inc | 4,479 | $3.46M | 0.78% | +8+0.2% | Added |
| Kestra Advisory Services, LLC | 4,470 | $3.45M | 0.01% | +65+1.5% | Added |
| Metis Global Partners, LLC | 4,448 | $3.44M | 0.08% | −383−7.9% | Reduced |
| Arkadios Wealth Advisors | 4,435 | $3.43M | 0.06% | +1,184+36.4% | Added |
| Moran Wealth Management, LLC | 4,398 | $3.40M | 0.10% | −202−4.4% | Reduced |
| Dillon & Associates Inc | 4,391 | $3.39M | 0.47% | +18+0.4% | Added |
| Tower Research Capital LLC (TRC) | 4,378 | $3.38M | 0.09% | −2,346−34.9% | Reduced |
| Global X Japan Co., Ltd. | 4,367 | $3.37M | 0.17% | +186+4.4% | Added |
| AG2R la Mondiale Gestion D'Actifs | 4,337 | $3.35M | 0.15% | −7−0.2% | Reduced |
| Te Ahumairangi Investment Management Ltd | 4,329 | $3.34M | 0.56% | −220−4.8% | Reduced |
| Andra AP-fonden | 4,232 | $3.27M | 0.04% | +4,232 | New |
| Integrated Wealth Concepts LLC | 4,201 | $3.25M | 0.03% | +2,225+112.6% | Added |
| Sarissa Capital Management LP | 4,190 | $3.24M | 2.05% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 4,374 | $3.20M | 0.06% | +381+9.5% | Added |
| Northwestern Mutual Wealth Management Co | 4,053 | $3.13M | 0.00% | −138−3.3% | Reduced |
| Walleye Capital LLC | 4,022 | $3.11M | 0.02% | −31,478−88.7% | Reduced |
| Krensavage Asset Management, LLC | 4,000 | $3.09M | 1.21% | 00.0% | Unchanged |
| Sivik Global Healthcare LLC | 4,000 | $3.09M | 2.35% | +4,000 | New |
| Prudential PLC | 3,988 | $3.08M | 0.02% | +2,073+108.3% | Added |
| Glenview Trust Co | 3,968 | $3.07M | 0.05% | −3−0.1% | Reduced |
| Advisory Services Network, LLC | 3,953 | $3.05M | 0.04% | +65+1.7% | Added |
| Simmons Bank | 3,946 | $3.05M | 0.20% | +820+26.2% | Added |
| Landscape Capital Management, L.L.C. | 3,935 | $3.04M | 0.19% | +3,503+810.9% | Added |
| Tokio Marine Asset Management Co Ltd | 3,925 | $3.03M | 0.11% | +54+1.4% | Added |
| Royal London Asset Management Ltd | 3,919 | $3.03M | 0.01% | −301−7.1% | Reduced |
| Signet Financial Management, LLC | 3,895 | $3.01M | 0.34% | −77−1.9% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 3,883 | $3.00M | 0.11% | +3,883 | New |
| RMR Wealth Builders | 3,873 | $2.99M | 0.24% | +414+12.0% | Added |
| Cito Capital Group, LLC | 3,840 | $2.97M | 0.91% | 00.0% | Unchanged |
| Apollon Wealth Management, LLC | 3,831 | $2.96M | 0.05% | +264+7.4% | Added |
| Gsa Capital Partners LLP | 3,831 | $2.96M | 0.18% | +3,831 | New |
| Saudi Central Bank | 3,812 | $2.95M | 0.06% | +3,812 | New |
| Aware Super Pty Ltd as trustee of Aware Super | 3,803 | $2.94M | 0.04% | +3,803 | New |